SPECS Nanonis SC5 - AC Performance

SC5 Signal Conversion Performance Measurements
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Analog inputs AC performance measurements
Frequency response
The frequency response of the analog inputs is measured by applying a sinewave with an amplitude of 1 V from a
Nanonis OC4. The amplitude was calibrated using a National Instruments 4071 PXI digital multimeter operated in
DMM mode.
The following settings have been used for the measurement:
SC5
OC4
Measured input: AI1 Output amplitude: 1 V
Output range: 1 V
Output waveform: Sinewave
Figure 29: Frequency response of the SC5 analog inputs from 10 Hz to 500 kHz.
Linearity
Linearity is measured by applying a 100 Hz sinewave with amplitudes ranging from 10 V (0 dBFS) to 100 µV (-100
dBFS) generated by AO1 to AI1. The amplitude was calibrated each time using a National Instruments 4071 PXI
digital multimeter operated in digitizer mode at 5 kS/s. Oversampling of the input is 256×, and the following settings
have been used for the measurement:
SC5
DMM
Measured input: AI1 Mode of operation: Digitizer, AC volts
Input oversampling: 256× Range: 10 V and 100 mV
Sampling rate: 5 kS/s
Resolution: 18 bit
Note: The amplitude was determined from the peak to peak value determined from the oscilloscope trace. This is not
a lock-in measurement.
10
10
1
10
2
10
3
10
4
10
5
−3
10
−4
10
−2
10
−1
10
0
10
1
Input voltage [V]
Frequency [Hz]